Set-Up; Installation; Connecting The Water Pipes; Connecting The Condensed Water Pipe - Dimplex BWP 301 L Installation And Operating Instructions Manual

4.2

4.2 Set-Up

 Remove the three M12 transport restraint screws fixing the
unit to the pallet from the bottom of the unit.
 Remove the pallet and mount the three M12 supporting feet
(in the plastic bag attached to the nipple of the cylinder pipe).
 Position the HW HP and align vertically by adjusting the de-
vice feet! Then tighten the counternuts on the device feet.
5

Installation

5.1 Connecting the Water Pipes

The nominal pipe widths for the on-site installation must be deter-
mined by taking into account the available water pressure and
any pressure drops expected to occur in the pipework.
The water pipes must be installed according to DIN 1988 (see
Appendix – for example, a pressure reducing valve must be used
if the pressure in the water pipes is impermissibly high!) The local
regulations for domestic water installations must be observed!
Both rigid and flexible water pipes may be used. Observe the cor-
rosion behaviour of the pipework materials to avoid corrosion
damage (see the Chapter "Start-Up").
NOTE
Hot water, cold water and circulation connections:
These pipe nipples contain plastic inserts which serve to protect against
corrosion (in particular to the pipe nipple flange surfaces). These plastic
inserts remain in their positions after the water pipes have been installed.
ATTENTION!
When installing the on-site pipework, ensure that the pipes are not
contaminated (flush pipes before connecting HW HP)!
5.2 Connecting the Condensed
Water Pipe
The condensed water hose is routed through the foil cladding at
the rear of the device. It should be so routed that the condensate
produced during heat pump operation can drain freely.
There is a pressureless seal valve at the end of the condensed
water hose which must be relocated if the condensed water
hose is shortened (the valve can be easily removed and relo-
cated on the hose). This valve is of special importance if longer
air hoses are fitted to the device, or if a filter is installed upstream
on the exhaust air side. The condensate should be drained into a
siphon (see also the maintenance information in Section 7.1).

5.3 Electrical Connection

The HW HP is wired ready for use; power is supplied via connec-
tion cables plugged into an earthed wall socket (~230 V, 50 Hz).
This socket must remain accessible after installation.
To connect the remote control, a separate cable (6-pole with a
min. wire cross-section of 0.75 mm² and a max. external cable
cross-section of 13 mm) must be connected to the device and
strain relieved via a screwed cable gland provided for this pur-
pose. The cable must then be routed through the available cable
feedthrough provided, and guided through the partition. The
plastic cover of the HW HP has to be removed to connect these
cables. The connection terminals are located on the partition in
the device.
E-6
External heating element control
It is possible to optionally control the heating element in parallel
to the "heating element" switch on the HW HP operating panel
via an external switch (e.g. timer). A floating contact on the exter-
nal switchgear is required for this type of connection. Further-
more, an additional cable (min. 2 x 1.0 mm² / max. cable external
cross-section 10 mm) must be led into the device and attached to
terminals 6 and 7 on the X5 terminal strip.
X3 Internal wiring only
X2 (1 - 6) Terminal for connecting the remote control cable
X5 (6 + 7) Terminal for connecting the external heating element control
(optional)
6

Start-Up

6.1 Hot Water System

ATTENTION!
Only operate the HW HP when it is filled with water!
Hot water system requirements
The following materials could be used in the consumer's hot
water system:
 Copper
 Stainless steel
Brass

 Plastic
Depending on the materials used in the hot water system (cus-
tomer installation), material incompatibility may lead to corrosion
damage. This especially applies to zinc-plated materials and ma-
terials containing aluminium. If there is a risk of water contamina-
tion during operation, it may be necessary to install a filter.
Hot water system start-up
 All installations for the water circuit, the air circuit as well as
all electrical installations must have been carried out cor-
rectly and fully completed.
 The hot water system must be filled via an external connec-
tion.
 De-aerate the hot water system (open hot water taps at the
highest extraction points until there are no more traces of
air).
 Check the entire hot water system for leaks.
 Establish supply voltage.
 Switch on the "heat pump" switch and the slide switch on the
remote control (see the illustrations in Section 6.2).
 The desired hot water temperature is infinitely adjustable (up
to 60 °C) via the temperature control button (see illustra-
tion). A certain heat-up time is necessary before the maxi-
mum water temperature is reached.